scholarly journals HUBUNGAN ANTARA KANDUNGAN SILIKA DENGAN KELIMPAHAN DIATOM BENTHIK DI SEPANJANG SUNGAI PELUS KABUPATEN BANYUMAS

2017 ◽  
Vol 4 (1) ◽  
pp. 61 ◽  
Author(s):  
Siti Umiatun ◽  
Carmudi Carmudi ◽  
Christiani Christiani

Silica is an element that is useful to the organism especially Diatoms (Chrysophyta: Bacillariophyceae). The sources of Silica in waters derive from weathering rock-containing silica. Diatoms are a phytoplankton that able to live as a phytobenthos distributed globally in all types of waters. The purpose of this study was to determine; the silica content, the abundance of diatoms, and the relationship between the content of silica and the abundance of diatoms in the Pelus River Banyumas. This research was conducted as a survey and samples were collected using composite sampling technique at 5 stations. Samples were collected three times with 2 weeks intervals. Two main parameters (diatoms abundance and silica content) and ten supporting parameters (temperature, current velocity, pH, DO, BOD, COD, TSS, TDS, nitrate, and ortofosfat of waters) were measured. Data of analysis calculated in this study including regression correlation analysis to determine the relationship of the silica content and the abundance of diatoms. The silica concentration in the Pelus River waters varies between 112.48-175.00 mg.l-1 with an average of 146 mg.l-1. The total abundance of benthic diatoms was 44,442 ind.cm-2. The highest diatoms abundance was at station II (11,128 ind.cm-2), the lowest was at Station IV (6,828 ind.cm-2). The relationship between silica contained in the waters and abundance of diatoms indicated by the value of R2 (coefficient of determination) by 0.38 or 38%. The abundance of Diatoms are affected 62% by the available silica in the environment, and the rest 38% e rest are determined by other factors.

2018 ◽  
Vol 5 (2) ◽  
pp. 63
Author(s):  
Novita Nurfajriani ◽  
Eka Putri Azrai ◽  
Diana Vivanti Sigit

<p align="center"><strong>Abstrak</strong></p><p>Perilaku pro-lingkungan adalah sebuah tindakan yang dilakukan secara sadar untuk mengurangi dampak negatif yang disebabkan oleh aktivitas manusia pada lingkungan. Perilaku pro-lingkungan peserta didik dapat ditingkatkan salah satunya melalui ecoliteracy. Penelitian ini bertujuan untuk mengetahui hubungan ecoliteracy dengan perilaku pro-lingkungan peserta didik SMP. Penelitian ini dilaksanakan di SMPN 45 Jakarta pada semester genap bulan Mei  tahun ajaran 2017-2018. Metode yang digunakan adalah metode deskriptif dengan studi korelasional. Sampel yang digunakan sebanyak 168 peserta didik yang dipilih dengan teknik simple random sampling. Hasil uji prasyarat diketahui bahwa data berdistribusi normal dan homogen. Koefisien korelasi yang diperoleh sebesar 0,171 dan nilai signifikansi sebesar 0,026, artinya terdapat hubungan yang signifikan antara ecoliteracy dengan perilaku pro-lingkungan peserta didik SMP Negeri 45 Jakarta. Koefisien determinasi yang diperoleh sebesar 0,029, artinya ecoliteracy berkontribusi terhadap perilaku pro-lingkungan peserta didik SMP Negeri 45 Jakarta sebesar 2,9%.</p><p><em> </em></p><p><em>Kata kunci: Ecoliteracy, perilaku pro-lingkungan, peserta didik.</em></p><p> </p><p align="center"><strong><em>ABSTRACT</em></strong></p><p><em>Pro-environmental behavior is a conscious act to reduce the negative impact caused by human activity on the environment. Pro-environment behavior in students can be improved through ecoliteracy. This study aims to determine the relationship of ecoliteracy with pro-environment behavior in students of junior high school. This research was conducted at 45 Jakarta junior high school on May 2017-2018. The method used is descriptive method with correlational study. Total of sample are 168 students selected by simple random sampling technique. The result of prerequisite test known that the data are normally distributed and homogeneous. The correlation coefficient is 0.171 and the significance value is 0.026, it means there is a significant correlation between ecoliteracy with pro-environment behavior of students of 45 Jakarta Junior High School. The coefficient of determination is 0.029, it means that ecoliteracy has determine pro-environment behavior of students of 45 Jakarta Junior High School equal to 2.9%.</em></p><p><em> </em></p><p><em>Keywords: Ecoliteracy, pro-environment behavior, student.</em></p>


2021 ◽  
Vol 8 (3) ◽  
pp. 203
Author(s):  
Dina Fajrin ◽  
Dwi Fajar Saputri ◽  
Ira Nofita Sari

This study analyses the relationship between student' learning motivation and student learning independence on dynamic electrical material in class IX SMP Negeri 7 Sungai Raya. The research method used is descriptive, with a correlative form of research. The population is 117 student from all grade IX students of SMP Negeri 7 Sungai Raya, the sample used in this study was 89 students. The sampling technique uses simple random sampling. Values used for independent and bound variables use a questionnaire. The Values analysis technique used is descriptive statistics and correlations with the coefficient of determination at a significant level of 5%. The result of research found that (1) student motivation in class IX SMP Negeri 7 Sungai Raya in the good category; (2) the independence of student learning was in a good category;  and (3) there was a positive and significant relationship between student motivation on student learning independence. So it can be concluded that the greater the student's learning motivation, the greater their learning independence.


2018 ◽  
Vol 6 (2) ◽  
pp. 124-129
Author(s):  
Muhamad Gustaman ◽  
Bambang Rahardjo

Credit risk is the inability of the customer to pay installments on time or due. This study aims to determine the effect of interest rates and the total value of collateral, on the risk of bad credit. Data obtained from published financial statements published by IDX with the period of 2013 to 2017. The sampling technique used in this study was purposive sampling. The number of samples is 4 banking companies listed on the Indonesia Stock Exchange. The analytical method used in this study is multiple linear regression, correlation, and coefficient of determination to obtain a comprehensive picture of the relationship between variables one with other variables. Based on testing the hypothesis by using the statistical t-test and the F test results showed that the interest rate has no effect and is not significant to bad credit, while the guarantee value has a positive and significant effect on bad credit and simultaneously there is a significant influence of interest rates and collateral value on bad credit


2020 ◽  
Vol 1 (2) ◽  
pp. 120-134
Author(s):  
Syamsul Akmal

This study aims to determine "The Influence of Competence on Employee Performance at Puskesmas Darussalam District, Aceh Besar District". Where the independent variables are Knowledge (X1), Skills (X2), Behavior (X3) and Work Experience (X4) and Employee Performance (Y) as the dependent variable. Population in this research is employee Puskesman District Darussalam. Samples were taken as many as 97 samples using saturated sampling technique (census). Data were collected using questionnaires filled out by respondents. The data obtained were analyzed by multiple linear regression. This analysis includes Test Validity, Reliability Test, Multiple Regression Analysis Test Classic Assumption, Hypothesis Testing through F Test and t Test , and Determination Coefficient analysis (R2). Based on the results of the study, obtained Y = 1.581 + 0.268 X1 + 0.232 X2 + 0.232 X3 + 0.430 X4. Of the four variables studied, only the working experience variables (X4) has the most dominant effect of 0.430 to the Performance of employees at the Puskesmas Darussalam District, Aceh Besar District. The relationship of each Knowledge (X1), Skill (X2), Behavior (X3) and Work experience (X4) to the Performance of employees at Puskesmas Darussalam District, Aceh Besar Regency with correlation coefficient (R) of 0.961 means that the relationship is very strong. Fcount> Ftable at 95% confidence level (a = 0.05), that is 175.092> 2.47. Then the coefficient of determination of each variable Knowledge (X1), Skills (X2), Behavior (X3) and Work Experience (X4) of 0.924 or 92.4% to Employee Performance (Y) means the four variables simultaneously affect Employee Performance on Puskesmas Darussalam District, Aceh Besar District, only 7,6% influenced by other variable not examined in this research. Keywords: Knowledge, Skills, Behavior, Work Experience and Performance


Author(s):  
Siti Badriyah ◽  
Rina Yuliana

<pre><em>This study aims to determine relationship of  reading to understanding  readings in  indonesian class v academic year 2017/2018. The method used in this research is quantitative descriptive method with correlational technique and sampling is done by random sampling technique. Technique of data collection is done through observation sheet and oral test about reading comprehension comprehension. Based on the data analysis obtained correlation coefficient in this study is 0,129 and included into very low category. The number indicates that the correlation is positive. Meanwhile, the coefficient of determination obtained is 1.6641%. These results indicate that the magnitude of the contribution of students' reading speed to the reading comprehension of students is 1.6641%. Result of correlation significance test at significant level α = 0,05 obtained t<sub>count</sub> = 0,596 and t<sub>table</sub> = 1,721. So it can be concluded that there is a positive relationship between the speed of reading to understanding reading but not significant.</em></pre>


2020 ◽  
Vol 3 (1) ◽  
pp. 11-20
Author(s):  
Siska Oktavia ◽  
Wahyu Adi ◽  
Aditya Pamungkas

This study aims to analyze the value of the density of marine debris, perceptions and participation in Temberan beach and Pasir Padi beach, as well as determine the relationship of perception and participation to the density of marine debris. This research is a type of research that is descriptive with a mixed approach (quantitative and qualitative). The study was conducted at Temberan beach in Bangka Regency and Pasir Pasir Beach Pangkal Pinang in October 2019. The sampling technique used was random sampling and purposive sampling. The data collection technique was carried out using observation technique namely sampling and questionnaire. The validity test uses the Pearson Product Moment formula and the reliability test uses the Cronbach’s Alpha formula. The results showed that the density of debris in the Temberan beach was more dominant at 10.92 pieces/meter2, while at Temberan beach 3 pieces/meter2. The results of perception and participation are different, with the Temberan beach occupying more complex waste problems. The relationship of perception and participation in the density of marine debris have a relationship that affects each other.


2018 ◽  
Vol 11 (2) ◽  
pp. 196-204
Author(s):  
Asirotul Ma’rifah ◽  
Naning Puji Suryantini Suryantini ◽  
Rina Mardiyana

Autism is still a nightmare for most parents. Parents with autism can be very stressful when dealing with a hyperactive child's behavior, aggressive and passive. Stress experienced by parents of children with autism will affect the ability of parents in the parenting role, especially in relation to coping strategies have in dealing with problems of children. The participation of parents is crucial the success of socializing with children with autism in the general population. This study aims to determine the relationship of coping strategies parents of autistic children and parenting parents. This type of research is an analytic correlation with cross sectional approach. The population in this study were all parents of autistic children in SLB Muhammadiyah Mojokerto numbering 15 people. Samples in this study were all parents of autistic children in SLB Muhammadiyah Mojokerto which totaled 15 people by using total sampling technique. Collecting data using questionnaires. Data analized use cross tabulation, presented in a frequency distribution. On cross-tabulation obtained results tend to use maladaptive coping strategies permissive parenting that is 8 (53.3%), there are also respondents who use adaptive coping strategies using authoritarian parenting as much as one person (16.7%), and adaptive coping strategies tend using democratic parenting style as much as 5 people (33.3%). Expected parents still seeking information to broaden their parents on coping strategies of parents of autistic children and parenting parents as well as parents to give special attention for children with autism to the development and advancement of their lives because they have the same rights as any other normal child.


2020 ◽  
Vol 14 (1) ◽  
pp. 45-60
Author(s):  
Yashinta Yashinta ◽  
Dwi Hurriyati

This study aims to determine the relationship of loneliness with problematic internet use on boarding students on Silaberanti street in Siantan jaya Opposite Ulu 1 Palembang city. Research subjects numbered 220 people using random sampling methods. Data was collected using a 60 item problematic internet use scale and a 60 item loneliness. Realibility is generated on scale of problematic internet use of 0,955 and loneliness of 0,946.Hypothesis testing uses product moment correlation analysis techniques. Hypothesis test results showed a positive relationshif between loneliness with problematic internet use on boarding students on Silaberanti street in Siantan jaya Opposite Ulu 1 Palembang city r= 0,684 with a significance level of 0,000 (p<0,01). Loneliness in this study made an effective contribution of 46,8% to problematic internet use which can be seen from the coefficient of determination (r²) that is equel to 0,468.


2018 ◽  
Vol 3 (3) ◽  
pp. 500
Author(s):  
Desmariyenti Desmariyenti ◽  
Nelfi Sarlis ◽  
Rima Fitriani

<p><em>Good weaning time is done at the age of the child reaches 2 years. Weaning at less</em><em> </em><em>than 2 years of age can cause problems in children such as incidence of infectious diseases, especially increased diarrhea, nutritional effects that lead to malnutrition in children and cause the relationship of children and mothers is reduced </em><em>closeness </em><em>because bounding attachment process is disrupted. This study aims to determine the relationship between knowledge  and  attitude  of  the  mother  with  the  decision  of  weaning  time  in</em><em> </em><em>Tangkerang Timur Work Area Puskesmas Tenayan Raya. This research was conducted in </em><em>Mei</em><em>-</em><em>J</em><em>uni 2017 and this research using research type is quantitative data with research design  using  cross  sectional.  Sampling  technique  using  Stratified  random  sampling, population in this study amounted to 368 people and samples 18</em><em>4</em><em> p</em><em>e</em><em>ople in East Tangkerang Village. The analysis used is univariate and bivariate. The result of this research is can be concluded that there is significant relation between knowledge with time weaning (p-value 0,000 &lt;0,05), there is significant relation between attitude with time weaning (p-value 0,000 &lt;0,05). Mothers exclusively breastfeed to their babies until 6 months of age and and continue with breastfeeding until 24 months of age.</em><em></em></p><p> </p><p>Waktu penyapihan yang baik dilakukan pada usia anak mencapai 2 tahun. Penyapihan yang dilakukan pada usia kurang dari 2 tahun dapat menyebabkan masalah pada anak seperti insiden penyakit infeksi terutama diare meningkat, pengaruh gizi yang mengakibatkan malnutrisi  pada  anak  dan  menyebabkan  hubungan  anak  dan  ibu  berkurang  keeratannya karena proses bounding attachment terganggu. Penelitian ini bertujuan untuk mengetahui hubungan antara pengetahuan dan sikap ibu dengan keputusan waktu penyapihan di Keluraan Tangkerang Timur Wilayah Kerja Puskesmas Tenayan Raya. Penelitian ini dilakukan pada bulan Mei-Juni tahum 2017 dan penelitian ini menggunakan jenis penelitian adalah data kuantitatif dengan  desain penelitian menggunakan  cross sectional. Teknik sampling menggunakan Stratified random sampling, Populasi dalam penelitian ini berjumlah 368 orang dan sampel 184 orang di Kelurahan Tangkerang Timur. Analisa yang diunakan adalah univariat dan bivariat. Hasil penelitian didapatkan bahwa ada hubungan bermakna antara pengetahuan dengan waktu penyapihan (p-value 0,000&lt; 0,05), ada   hubungan   bermakna   antara   sikap   dengan   waktu   penyapihan   (p-value   0,000   &lt;0,05). Diharapkan ibu memberikan ASI eksklusif pada bayinya sampai usia 6 bulan dan dan dilanjutkan dengan MPASI sampai usia 24 bulan.</p>


2020 ◽  
Vol 4 (4) ◽  
pp. 314
Author(s):  
Ida Rochanawati ◽  
Agusti Efi

Many of Bunda's Tourism Diploma graduates are still unemployed because some are less interested in becoming self-employed. It because students are not motivated to become entrepreneurs, and the family environment is not yet supported. This study aimed to measure: the relationship between entrepreneurial learning outcomes, entrepreneurial motivation, and family environment with interest in entrepreneurship. This type of research is descriptive correlational. This research population is all students of the Hospitality study program of the Bunda Padang Tourism Academy, batch 2017 and 2018, totaling 61 students. The sample in this study were 61 students using the total sampling technique. The data collection instrument used a questionnaire using a Likert scale and data analysis methods, including simple correlation and multiple correlations. Research is expected to increase students' entrepreneurial knowledge through attitudes, knowledge, and skills to overcome entrepreneurial tasks' complexity, providing real experiences for students to carry out entrepreneurial practices.


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